About: http://webisa.webdatacommons.org/296523577

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	However, debris or other matter may build up on the internal components of the valves which then become inoperable.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com